Harrow



f Fig; i lhoking inthe direction of the arrows.

Patented Sept. 21, 1926.

UNITED- sm'rss' PATENT orsicsgj UGUSTINE.ism'rnoLomEwBEnroRn, or RossENnALE, MANITOBA; CANADA.

iH'ARROWL Application flIed-December 22, 1924". Serial- N'o; 751416} My invention relates toharro-Ws and my object is to provide an implement of this character ha-ving a wheeled frame from which the barrow sections may be suspended when notin use and when so suspended may he easily transported from place" to place.

hen-the" harrow' had to be transferred from field to field or across rai-l w'ay tracks etc, it has beennecessary to dismantle it and load the sections on a wagon-or other Vehicle for transportation and onreaching the place of use to reassemble the sections.- This involved considerable labor and loss of time.

1g; 91s a sectional View on line fif -2 of Fig; 3 is a section on line 3 3 of Fig; 1.

Fig. 4 is a section on- Pine of Fig; 1 looking the direction" of the arrows;

Fig. 5 is a detailv of the lifting means at oneend ofa harrow section;

Fig. 6 is detail of the clutch operating means. a

.lVty invention relates to' ha rrowsiand comprises a air of wheels and a connecting axle I, nections' are with a rigid framemounted thereon: Rotatableshafts are mounted at the front and rear of this; frame and these" shafts are. driven by suita-hle mechanismfrom the Wheels of the frame. The sections of the harrow are flexihly' connected to these shafts herehy when the shaft-sare rotated the flexible con- Woun'dthereon and the harrow sections are lifted fromthe gr0und-.- A

i drivers seat is mounted on the" frame and means are provided for causing the shafts to be rotated and; for locking them against rotation when the sections have beenl i ft'ed from the ground. 7

Referring to thedrawings' wherein' similar numerals of reference desi-gnaite simi l ar parts 1 indicates the Wheels, 2- the axle ztn'd 3 the frame mounted thereon. The axle is shown as extendingfrom end to end ofthe imme but it will: be readily understood that two short axles may heus'edl- The frame is formed of angle iron preferably for the sake of lightness and strength and maybe of any preferred form-. Mounted in this" frame at the front a n'd rear and 'ex tendi'iig lon itudinally thereof aretheshafts 5 and 4 adapted to rotate in hearings in the ends of the frame 3 On each of these shaft's at opposite ends thereof lSffiXGd a! lo'evel wheel 6 adapted torotate With the shaft; Disposed transversel y of the frame at opposite ends thereof are Hie-shafts? having be vel gears 7 adapted to mesh with thehevel Wheels 6 on the shafts f and 5. Slidably; mounted on-tl i'e shafts 'Z and adapted to rotate therewith are the beveled friction wheel's- 8 Which in operative position tunctional ly engagethe friction Wheels 9" fixedly secured to thetr'a'c t'i'on wheels I t Will beobserved thait' the hevel Wheelson the shaft 5 mesh with" the bevel gear 7 on the side of the gear opposite to that which the bevel heel 6' meshes with the other b'evel gear 7 in order -to -heve the shafts 4 and 5- rotate in the same direction; Fixed to the shaftse amide zit-spaced interx' al's are chainor lift Wheels 115 The number of these Wheels on each: shaft corresponds with thenumber of sections in the harrow'and' are here's'hOWiiaS thre'e; Chains II for a purpose now to be described are secu-rech to the Wheels.-

The harrow'compri'ses my preferred number of sections 1 2',- in the drawings shown as three and may be of the usual construction.

To the front and rear of each section: isattached by boltsor otherwise the suspension rod 13 which is secured the free end of the chain 11 To secure-each section of the barrow totheframe and to provide a: proper disposition thereof draft chain's 1:4:- are 1 secured to' the front portion of the frame 8 and to the front of each ha'rrow" section. See especially Fig. 3. This provides: a flexihle connection between the frame and the harrow sections and permitsthe'l atter'to accommodate themselves'to the inequalities of the ground} From this constructionit Will he'seen that on the rotation of the traction wheels 1 the shafts 7 will be rotated through the medium of the friction wheels 8 and9 and this rotation will be transmitted to the shafts 4 and 5 and thus to the lift wheels through the bevel gears 6 and 7 thus raising the harrow clear off the ground.

In order to raise and lower the harrow at- Will I provide means under the control of the driver for throwing the friction wheel 8 into engagement with the wheel 9. These means comprise spaced collars 14 secured to the wheel 8 and adapted to slide with it. Pivotally mounted in the frame 3 is a bell crank lever 15 one arm of which engages the spaced collars while the other through the medium of a flexible cable 16 passing over the antifriction rollers 17 on the brackets 18 rigidly secured to the tongue '19 and is ,securedto the foot lever 20. This lever is within easy reach of the drivers foot as he occupies the seat 21 mounted on the tongue.

To disengage the wheels 8 and 9 I provide the spring 22 connecting the bell crank 15 to the frame 3 and normally holding the Wheels 8 and 9 out of engagement. In moving the implement from place to place it isdesirable to lock the harrow in itsraised' position. To accomplish this I provide 'notch'ed disks 23 fixed to the shaft-s 4 and 5 adjacent the tongue. A foot lever 24 is pivoted to the frame at 25 and on opposite sides of said pivot point. The locking rods-or ,plungers 26 are pivotally connected to the lever- 24 and are adapted in operative position to engage the notches 27 in the disks 28. A spring 28 securing the lower end of the lever 24 to the frame is adapted nor; mally to hold the locking rods in operative position, WVhen' said rods 26 are I withdrawn and'the shafts and disks rotated the rods 26 ride on the peripheries of the disks. The operation of the lifting and locking mechanism is as follower-When the driver desires to raise the harrows from the ground he presses on the foot lever 20 and this movement through the cables 16 actuates the bell cranks-15 at opposite ends of the frame torshift the'friction wheels 8 into engagement with the wheel 9 and thus rotate the shafts 4 and 5 and thus raise the harrow by means of the wheels 10 and chains The disks 23 rotate with the shafts 4 and 5 and as the plungers 26 ride on the peripheries of said disks under the influence of the spring 28 they drop into the notches 27 when the harrow has reached the desired height and thus lock the harrow at the desired height. From the foregoing it will be seen that I have devised a light but strong and durable frame from which the harrow may be suspended when being transferred from field to field or from farm to farm and which will permit of its being easily cleaned during use without the great loss of time and labor hitherto involved. It is to be understood that various changes in the details of construction may be made without departing from the spirit of'my invention and that I desire to avail myself of. all such changes as come within the scope of the appended claims.

What I claim and desire to secure by Letters Patent is 1 1. A harrow comprising a frame having longitudinal shafts at the front and rear thereof said shafts having gears at their opposite ends, transverse shafts at opposite ends of the frame having gears meshing with the gears. on the longitudinal shafts,

traction wheels supporting said frame, harrow sections flexlbly connected to said longitudina'l shafts and means. for rotating said transverse shafts from the traction wheels,

substantially as described.

2. A harrow of the kind described comprising a frame having longitudinal shafts at front and rear having bevel gears at their opposite ends, transverse shafts at opposite ends of the frame having gears meshing with the gears on the longitudinal shaft, traction wheels supporting the frame harrow sections flexibly connected to the frame and to the longitudinal shafts, gears for rotating said transverse shaft from the trac tion wheel and means for normally holding such gears out of engagement, substantially as described.

3. A harrow comprising a frame having longitudinal shafts at the front and rear;;

thereof, said shafts having bevel gears at their opposite ends, transverse shafts at the opposite ends of the frame having gears meshing with the gears onthe longitudinal frame. harrow sections flexibly connected to the longitudinal shafts, means for driving the transverse shaft from the traction wheels comprising fixed and slidable gearson the traction wheel and shaft respectively and drivers. seat to throw said driving means into engagement, substantially as described.

5. A harrow comprising a frame having longitudinal shafts at the front and rear thereof, traction wheels supporting said frame, harrow sections flexibly connected to said frame and to said shafts means for driving said shafts at will from the traction wheels to raise the harrow sections, means to lock said sections in raised positionand 105 shafts, traction wheels v supporting said means under the control of the driver to cause the engagement of said driving means, substantially as described.

6. A harrow comprising a frame having 5 longitudinal shafts at the front and rear thereof, traction Wheels supporting said frame, harroW sect-ions flexibly suspended from said shafts, means for driving said shafts at will from the traction Wheels to raise the harrow sections, notched disks carried by said shafts, locking rods adapted to engage said notches to secure said shafts against movement, and means for actuating said locking rods. 7

In testimony whereof I aflix my signature.

AUGUSTINE BARTHOLOMEW BEDFORD. 

